The Triple Bite: An Anthony Bathurst Mystery (The Anthony Bathurst Mysteries, Band 10)

I never thought it would fall to my lot to write what is popularly known as a "thriller", but Lois insists that I am the right person to do it and when Lois sets her mind on anything-
Young Cecilia Cameron takes up reins as narrator in one of Brian Flynn's most diabolical and surprising mysteries. Cecilia isn't expecting to become embroiled in the secret of the doggerel cryptogram, still less the horror that hangs over a little corner of Sussex. When Anthony Bathurst arrives to investigate, she will discover the real meaning of the tiny blood-smear near the body of the late colonel. . . . Only Bathurst's extraordinary knowledge of the career of the immortal Sherlock Holmes will enable him to succeed in his investigations.
The most exacting thrill-seeker will happily travel hand in hand with Anthony and Cecilia along this trail of clues - and just may eventually help put a name to the guilty party.
The Triple Bite was originally published in 1931. This new edition features an introduction by crime fiction historian Steve Barge.